Salioso, Herdi,  1965- <br/><br/>
Kota Dumai :  mutiara pantai timur Sumatera / 
Herdi Salioso 
 - Pekanbaru :  UNRI Press ,  2003 
 - x, 198 p. :  ill ;  21cm. 
<br/><br/><label>ISBN: </label>9793297522  hadiah 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Riau (Indonesia)--Social conditions